From 1ce643471d5f48f0a78302afa0aaad49c293b30c Mon Sep 17 00:00:00 2001 From: Masahiko Sawada Date: Wed, 20 Jul 2022 17:25:11 +0900 Subject: [PATCH] Improve description of XLOG_RUNNING_XACTS. Previously, the description of XLOG_RUNNING_XACTS showed only top-transaction XIDs and whether subtransactions are overflowed. This commit improves it to show individual subtransaction XIDs. This impacts the format of pg_waldump or anything using these description routines, so no backpatch is done. --- src/backend/access/rmgrdesc/standbydesc.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/src/backend/access/rmgrdesc/standbydesc.c b/src/backend/access/rmgrdesc/standbydesc.c index 2dba39e349..426aabfbb5 100644 --- a/src/backend/access/rmgrdesc/standbydesc.c +++ b/src/backend/access/rmgrdesc/standbydesc.c @@ -32,7 +32,13 @@ standby_desc_running_xacts(StringInfo buf, xl_running_xacts *xlrec) appendStringInfo(buf, " %u", xlrec->xids[i]); } - if (xlrec->subxid_overflow) + if (xlrec->subxcnt > 0) + { + appendStringInfo(buf, "; %d subxacts:", xlrec->subxcnt); + for (i = 0; i < xlrec->subxcnt; i++) + appendStringInfo(buf, " %u", xlrec->xids[xlrec->xcnt + i]); + } + else if (xlrec->subxid_overflow) appendStringInfoString(buf, "; subxid ovf"); } -- 2.24.3 (Apple Git-128)